JP6192223B2 - Agricultural machine - Google Patents

Description

  The present invention relates to an agricultural machine capable of leveling a farm scene.

  Conventionally, for example, a farm working machine such as a scraper described in Patent Document 1 is known.

  This conventional farm work machine includes, for example, a machine body connected to the rear part of a traveling vehicle such as a tractor, a farmer body rotatably provided on the machine body and performing a tilling work while rotating in a predetermined direction, and a rear side of the farmer body. And a leveling body for leveling work.

  Further, the leveling body has a plurality of cutout portions located side by side in the left-right direction at the rear end, and the plurality of cutout portions are all formed in an equal size.

Japanese Utility Model Publication No. 59-55411 (FIG. 1)

  However, in the above conventional farm work machine, for example, depending on the soil condition or work method of the farm field, unevenness may remain in the farm scene and the farm scene may not be leveled.

  This invention is made | formed in view of such a point, and it aims at providing the agricultural machine which can level the field scene uniformly.

The agricultural machine according to claim 1 includes a cultivating body that performs a tilling operation and a leveling body that performs a leveling operation behind the cultivating body, and the leveling body includes one plate-shaped leveling unit, One plate-shaped leveling portion has a plurality of cutout portions having unequal sizes.

The agricultural machine according to claim 2 includes a cultivating body that performs a plowing operation and a leveling body that performs a leveling operation behind the cultivating body, and the leveling body includes one plate-shaped leveling unit, One plate-shaped leveling part has a plurality of notch parts located side by side in the left-right direction, and the size of the notch part varies depending on the position in the left-right direction.

  The agricultural machine according to claim 3 includes a cultivating body that performs a tilling operation and a leveling body that performs a leveling operation behind the cultivating body, and the leveling body includes a plurality of cutout portions that are arranged side by side in the left-right direction. And the size of the cutout portion is different so as to decrease from the laterally central portion side to the lateral end portion side of the leveling body.

The agricultural machine according to claim 4 includes a cultivating body that performs a tilling operation and a leveling body that performs a leveling operation behind the cultivating body, and the leveling body includes a plurality of cutout portions that are arranged side by side in the left-right direction. And the size of the cutout portion is different so as to increase gradually or stepwise from the laterally central portion side to the lateral end portion side of the leveling body.

  The agricultural machine according to claim 5 is an agricultural machine connected to a rear portion of the traveling vehicle, and includes a cultivating body that performs a plowing operation and a grading body that performs a grading operation behind the cultivating body, Has a plurality of cutout portions located side by side in the left-right direction, and the size of the cutout portion located behind the traveling wheel of the traveling vehicle is larger than the size of other cutout portions among the plurality of cutout portions. Is also small.

The farm working machine according to claim 6 includes a cultivating body that performs the tilling work and a leveling body that performs the leveling work behind the cultivating body, and the leveling body includes a rotatable first leveling unit and the first leveling unit. A second leveling portion rotatably connected to the one leveling portion, and the second leveling portion has a plurality of cutout portions having unequal sizes.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to perform appropriate leveling work and leveling can be done evenly in a farm scene.

It is a rear view of the agricultural working machine which concerns on the 1st Embodiment of this invention. It is a rear view of the one side folding state of an agricultural working machine same as the above. It is a partial top view of the rear end leveling part (gradual change) of an agricultural working machine same as the above. It is a partial top view of the rear end leveling part (low stage change) of the agricultural working machine same as the above. It is operation | movement explanatory drawing of a farm work machine same as the above. It is operation | movement explanatory drawing of the agricultural working machine which concerns on the 2nd Embodiment of this invention. It is action | operation explanatory drawing of the agricultural working machine which concerns on the 3rd Embodiment of this invention. It is a figure which shows the 2nd leveling board of the agricultural working machine which concerns on the 4th Embodiment of this invention, (a) is a top view, (b) is a rear view, (c) is a side view. It is a figure which shows the 2nd leveling board of the agricultural working machine which concerns on the 5th Embodiment of this invention, (a) is a top view, (b) is a rear view, (c) is a side view. It is a fragmentary top view of the rear end leveling part of the agricultural working machine which concerns on the 6th Embodiment of this invention. It is operation | movement explanatory drawing of a farm work machine same as the above.

  A first embodiment of the present invention will be described with reference to FIGS.

  In the figure, reference numeral 1 denotes an agricultural machine. The agricultural machine 1 is connected to a rear portion of a tractor (not shown), which is a traveling vehicle, for example, and moves forward in an agricultural field such as a paddy field by the forward traveling of the tractor. It is a scissor machine that performs farming work (plowing work).

  As shown in FIGS. 1 and 2, etc., the farm work machine 1 includes a central working unit 2 that is detachably connected to the rear part of the tractor, and rotating central shafts (rotating fulcrums) on the left and right sides of the central working unit 2. ) An extension working unit 3 provided so as to be pivotable in the vertical direction about 5 and a rotation driving means for rotating the extension working unit 3 with respect to the central working unit 2 about the rotation center axis 5. And a certain cylinder portion 4.

  Each of the left and right extension working parts 3 is in a non-folding working state located on the central working part 2 by turning in the folding direction around the turning center axis 5, and is centered on the turning center axis 5. By the rotation in the unfolding direction, the unfolding operation state located on the side of the central working unit 2 is obtained.

  And such a foldable three-division agricultural working machine 1 includes a working state by the central working part 2 and the left and right extension working parts 3, and the central working part 2 and the left and right extension working parts 3 only. It is possible to selectively switch between the work state by and the work state by only the central work unit 2.

  The central working unit 2 is detachably connected to a three-point link unit (working device lifting device) at the rear of the tractor (not shown), and is rotatably provided on the machine 6 and is cultivated while rotating in a predetermined direction. A rotary-type tillage body (not shown) that performs work and a leveling body 7 that performs leveling work behind the tillage body are provided.

  The tillage body has a left and right longitudinal tillage shaft that rotates based on power from the tractor side, and a plurality of tillage claws are attached to the nail holder portion of the tillage shaft. The machine body 6 has a curved plate-like cover portion 8 that covers the upper portion of the tilled body, and a ground leveling body 7 is provided at the rear end portion of the cover portion 8 so as to be rotatable in the vertical direction.

  The leveling body 7 is a first leveling plate (level plate) that is a plate-shaped first leveling portion that is connected to the rear end portion of the cover portion 8 of the machine body 6 so as to be rotatable in the vertical direction via a horizontal axis. 11 and a second leveling plate (rake) 12 which is a plate-like second leveling portion connected to the lower end portion of the first leveling plate 11 via a horizontal axis so as to be rotatable in the vertical direction. doing.

  The second leveling plate 12 has a leveling plate main body portion 13 that is substantially rectangular in the left-right direction. Engaging convex portions 14 project from the left and right ends of the leveling plate main body portion 13. Yes. Leveling plate setting means 16 is installed between the horizontal center of the leveling plate main body 13 and the central portion of the machine body 6 in the horizontal direction.

  The second leveling plate 12 is set to a horizontal posture (including a substantially horizontal posture) by the leveling plate setting means 16 at the time of leveling work (at the time of cutting work), and vertical by the leveling plate setting means 16 at the time of earthing work. The posture (including a substantially vertical posture) is set.

  The pair of left and right extension work sections 3 can extend the work of the central work section 2 and have a symmetrical configuration. Each extension work section 3 is in the left-right direction of the body 6 of the central work section 2. An extension machine body 21 provided at the end so as to be rotatable in the vertical direction around the rotation center axis 5 and a rotary type that is provided on the extension machine body 21 so as to be rotatable and rotates in a predetermined direction. An extended tillage body 23 and an extended leveling body 22 that performs leveling work behind the extension tillage body 23 are provided.

  The extension cultivating body 23 has a left and right longitudinal extension cultivating shaft 24 that rotates based on power from the central working unit 2 side, and a claw holder portion 25 of the extension cultivating shaft 24 has a plurality of extension cultivating claws 26. Is attached. The extension machine body 21 has a curved plate-like cover portion 28 that covers the upper portion of the extension tillage body 23, and the extended leveling body 22 is provided at the rear end portion of the cover portion 28 so as to be rotatable in the vertical direction. It has been.

  The extension leveling body 22 is a first extension leveling plate which is a plate-like first extension leveling part connected to the rear end of the cover part 28 of the extension machine body 21 via a horizontal axis so as to be rotatable in the vertical direction. (Extension leveling plate) 31 and a second extension leveling unit that is a plate-like second extension leveling unit that is connected to the lower end of the first extension leveling plate 31 via a horizontal axis so as to be rotatable in the vertical direction. A ground plate (extended rake) 32 and an auxiliary leveling plate (auxiliary leveling plate (auxiliary leveling plate), which is connected to the outer end of the second extended leveling plate 32 so as to be pivotable in the vertical direction via a longitudinal axis) Rake) 33.

  The second extension leveling plate 32 is in the left-right direction which is located on the same plane as the leveling plate main body 13 of the second leveling plate 12 of the central work unit 2 when the extension work unit 3 is in the unfolding state. An extended leveling plate main body 36 having a substantially rectangular plate shape is provided. An engagement recess 37 is provided at the inner end of the extension leveling plate main body 36 so as to be detachably engaged with the engagement projection 14 of the second leveling plate 12 when the extension work part 3 is in the unfolded state. Yes.

  The auxiliary leveling plate 33 has a plate-shaped main body portion 38 having a substantially rectangular shape whose outer end portion has a length dimension in the front-rear direction, and a mounting portion 39 is provided at the inner end portion of the main body portion 38. The portion 39 is rotatably attached to the outer end portion of the extended leveling plate main body portion 36.

  The auxiliary leveling plate 33 is selectively switched between the unfolding working state and the folding non-working state by the driving means 40 for rotating the auxiliary leveling plate. When the auxiliary leveling plate 33 is deployed, the main body 38 of the auxiliary leveling plate 33 is located on the same plane as the leveling plate main body 13 and the extended leveling plate main body 36.

Here, as shown in FIGS. 1 to 3, the second leveling plate 12 of the leveling body 7 of the central working unit 2 has a plurality of muddy water outflow notches having an uneven opening area size (amount of opening). parts and has a (Eji E restrictor portion) 41 on the rear end side.

  That is, the leveling plate main body portion 13 of the second leveling plate 12 has a plurality of rear opening-like notches 41 positioned at the rear end thereof and arranged side by side in the left-right direction. The sizes of are different in a similar manner depending on the position in the left-right direction.

  That is, for example, in the example shown in FIG. 3, the size of the plurality of cutout portions 41 is 1 from the left-right direction central portion side of the second leveling plate 12 of the leveling body 7 toward both left-right direction end portions of the second leveling plate 12. Similar to each other so as to gradually decrease. For example, as in the example shown in FIG. 4, the size of the plurality of notches 41 is from the horizontal center of the second leveling plate 12 of the leveling body 7 to both ends of the second leveling plate 12 in the horizontal direction. A similar configuration may be used so that the number decreases step by step.

  And each notch 41 of this 2nd leveling board 12 is formed in the rear end part of the leveling board main-body part 13 in the planar view triangle shape (a planar view substantially triangular shape is included) opened toward back. . The size of one notch 41 located at the center in the left-right direction of the leveling plate main body 13 is, for example, 1 of the size of the other notch 41 located at the left-right end of the leveling plate main-body 13. 1 to 3 times (preferably 2 times).

Similarly to the second leveling plate (second central leveling plate) 12, the second extended leveling plate 32 of the extended leveling body 22 of the extension working unit 3 also has a plurality of unequal sizes (opening amounts) of opening areas. extension notch mud flow out (Eji E restrictor portion) 46 has the rear end side.

  In other words, the extended leveling plate main body 36 of the second extended leveling plate 32 has a plurality of rearward opening-shaped extended notches (notches) 46 located at the rear end thereof and spaced from each other in the left-right direction. The sizes of the plurality of extended cutouts 46 are similarly different depending on the position in the left-right direction.

  That is, for example, in the example shown in FIG. 3, the size of the plurality of extension notches 46 is such that the second extension leveling plate 32 extends from one end side (inner end side) in the left-right direction of the second extension leveling plate 32 of the extension leveling body 22. Are different in a similar manner so as to gradually decrease one by one toward the other end in the left-right direction (outer end). For example, as in the example shown in FIG. 4, the size of the plurality of extended notches 46 is the second from the inner end side (second leveling plate 12 side) of the second extended leveling plate 32 of the extended leveling body 22. A similar configuration may be adopted so that several pieces are gradually decreased toward the outer end side of the extended leveling plate 32 (auxiliary leveling plate 33 side).

  And each extended notch part 46 of this 2nd extension leveling board 32 is formed in the planar end triangle shape (a planar view substantially triangular shape is included) opened backward at the rear-end part of the extension leveling board main-body part 36. FIG. Has been. The size of one extended notch 46 positioned at the inner end of the extended leveling plate main body 36 is, for example, the size of the other extended notch 46 positioned at the outer end of the extended leveling plate main body 36. 1.1 times to 3 times (preferably 2 times).

Further, the auxiliary leveling plate 33 of the extended leveling body 22 of the extension working unit 3 also has a plurality of muddy water outflows with uneven opening area sizes (opening amounts), like the second leveling plate 12 and the second extended leveling plate 32. auxiliary notch use the (Eji E restrictor portion) 50 has the rear end side.

  That is, the main body portion 38 of the auxiliary leveling plate 33 has a plurality of rear-opening auxiliary notch portions (notch portions) 50 that are arranged side by side at intervals in the rear end portion. The size of the notch 50 is similarly different depending on the position in the left-right direction.

  That is, for example, in the example shown in FIG. 1, the size of the plurality of auxiliary cutouts 50 is such that the one side of the auxiliary leveling plate 33 in the left-right direction (inner side) is the other side in the left-right direction of the auxiliary leveling plate 33 Similar to each other so as to gradually decrease one by one toward the end side). Although not shown, for example, the size of the plurality of auxiliary cutout portions 50 is from the inner end side of the auxiliary leveling plate 33 (second extended leveling plate 32 side) to the outer end side of the second extended leveling plate 32 (agricultural work). The configuration may be different in a similar manner so as to decrease in a stepwise manner toward the outer end side of the machine 1.

  Each auxiliary notch 50 of the auxiliary leveling plate 33 is formed in the rear end portion of the main body 38 in a triangular shape (including a substantially triangular shape in a plan view) that opens rearward. The size of one auxiliary notch 50 positioned at the inner end of the main body 38 is, for example, 1.1 times to 3 times the size of the other auxiliary notch 50 positioned at the outer end of the main body 38. Double (preferably double).

  Further, the cutout portions 41, 46, 50 for allowing the muddy water in the field to flow backward during work are formed in a similar isosceles triangle shape having a base at the rear end of the main body portions 13, 36, 38, for example. . For example, at least the bottoms of the notch 41 and the extended notch 46 are located on the virtual straight line a along the left-right direction (see FIG. 3). The rear end leveling section 10 is composed of one second leveling plate 12 located at the center, a pair of left and right second extension leveling plates 32, and a pair of left and right auxiliary leveling plates 33.

  Next, the operation and the like of the agricultural machine 1 according to the first embodiment will be described.

  For example, when the left and right extension working parts 3 of the farm work machine 1 connected to the tractor are set in the unfolding work state and the farm work machine 1 is moved forward in the traveling direction by the forward traveling of the tractor in the farm field, the tilling of the central work part 2 The body and the extended tillage body 23 of the two extension work sections 3 perform the tilling work, and the leveling body 7 of the central work section 2 and the extension leveling body 22 of the both extension work sections 3 perform the leveling work.

  At this time, the muddy water in the field flows backward through the notches 41, 46, and 50 of the rear end leveling portion 10, but the sizes of the notches 41, 46, and 50 are uneven. A muddy water flow as shown by the arrow occurs.

  That is, in the second leveling plate 12 of the leveling body 7, the size of the plurality of notches 41 arranged in the left-right direction gradually increases from the left-right direction central portion side of the second leveling plate 12 toward both left-right direction end portions. Or, it decreases gradually (in other words, gradually or gradually increases from the left and right ends to the center in the left and right direction). More than the both ends in the direction, muddy water flows from the both ends in the left-right direction toward the center in the left-right direction.

  Further, in the second extended leveling plate 32 of the extended leveling body 22, the size of the plurality of extended notches 46 arranged in the left-right direction is from the inner end side to the outer end side of the second extended leveling plate 32. Decreasing gradually or stepwise (in other words, gradually or stepwisely increasing from the outer end side toward the inner end side), so that the amount of backward outflow on the inner end side is outside Much more than the end side, and therefore, a muddy water flow from the outer end side toward the inner end side occurs.

  As a result, for example, even in a soil field in which a lot of miscellaneous substances such as dredges are mixed, the miscellaneous substances such as dredges flow together with the muddy water toward the center in the left-right direction of the trailing edge leveling unit 10. It does not flow to the outside of the leveling part 10.

  Therefore, according to such a farm work machine 1, it is possible to perform appropriate leveling work and level the field scene evenly.

  Moreover, since the notch parts 41, 46, and 50 having different sizes are similar to each other, the notch parts 41, 46, and 50 can be easily formed.

  Next, FIG. 6 shows a second embodiment of the present invention.

  The sizes of the plurality of cutouts 41 shown in FIG. 6 are several each from the center in the left-right direction of the second leveling plate 12 of the leveling body 7 toward both ends in the left-right direction of the second leveling plate 12. It is different in a similar way to increase in steps. For example, although not shown, the size of the plurality of notches 41 is one by one from the center in the left-right direction of the second leveling plate 12 of the leveling body 7 toward both ends in the left-right direction of the second leveling plate 12. It is also possible to adopt a configuration that differs in a similar manner so as to increase gradually.

  The size of the plurality of extension notches 46 shown in FIG. 6 is from the inner end side of the second extension leveling plate 32 of the extension leveling body 22 toward the outer end side of the second extension leveling plate 32. It is different in a similar way so that it increases in steps of several. Although not shown, for example, the size of the plurality of extension cutouts 46 is 1 from the inner end side of the second extension leveling plate 32 of the extension leveling body 22 toward the outer end side of the second extension leveling plate 32. A similar configuration may be used so as to increase gradually one by one. Other configurations are basically the same as those in the first embodiment.

  And in the agricultural machine 1 of this 2nd Embodiment, since the flow of muddy water which goes to the outer side edge part as shown by the arrow of FIG. 6 arises, for example, a farm field with little soil, such as straw, and a large amount of water For example, it is possible to perform appropriate leveling work and level the farm scene evenly.

  FIG. 7 shows a third embodiment of the present invention. In this embodiment, the size of the plurality of notches 41 is the center side in the left-right direction of the second leveling plate 12. From the inner end side of the second extension leveling plate 32 to the outer end, and the sizes of the plurality of extension notches 46 are different from each other in a similar manner so as to decrease gradually or stepwise from the left and right ends. The difference is similar to increase gradually or stepwise toward the part side.

  For example, although not shown, the size of the plurality of notches 41 is gradually or stepwise increased from the center in the left-right direction to the both ends in the left-right direction. Similar and different so that the sizes of the plurality of extension notches 46 gradually or stepwise decrease from the inner end side to the outer end side of the second extension leveling plate 32. Other configurations may be used.

  Further, FIGS. 8A to 8C show a fourth embodiment of the present invention. As in this embodiment, the leveling plate of the second leveling plate 12 of the leveling body 7 is shown. A configuration in which a lower convex portion 51 that bulges downward is formed in a portion of the main body portion 13 that is located between the adjacent notch portions 41 may be employed.

  9 (a) to 9 (c) show a fifth embodiment of the present invention. Like this embodiment, the leveling plate of the second leveling plate 12 of the leveling body 7 is shown. The main body 13 may have a plurality of upper convex portions 52 that bulge upward, and a cutout 41 may be formed in each of the upper convex portions 52.

  10 and 11 show a sixth embodiment of the present invention.

  The sizes of the plurality of cutouts 41 shown in FIG. 10 are not uniform but uneven as in the above-described embodiments. That is, for example, among the plurality of cutout portions 41 formed at the rear end portion of the second leveling plate 12, a cutout portion located behind (including substantially rearward) a rear wheel (tractor tire) 55 that is a traveling wheel of the tractor. The size of 41 is smaller than the size of the remaining other cutouts 41 that are all formed equally (same dimensions).

  That is, the size of a plurality of cutouts 41 of the same size (for example, 7 pieces each on the left and right sides) located behind the left and right rear wheels 55 of the tractor is the same as the remaining size not located behind the left and right rear wheels 55 of the tractor. The size is smaller than the size of the plurality of cutout portions 41.

  Further, the sizes of the plurality of extended notches 46 shown in FIG. 10 are all equal, unlike the above embodiments. Other configurations are basically the same as those in the first embodiment.

  As shown in FIG. 11, in the conventional case, the amount of outflow of muddy water to the rear of the groove (recessed portion of the tractor tire mark) by the rear wheel 55 of the tractor is large, and the muddy water moves toward the outside of the groove. Since it is easy to flow, the groove is hard to be filled. In contrast, in the case of the present embodiment, the size of the notch 41 at the rear of the rear wheel 55 of the tractor is smaller than the size of the remaining other notch 41, so the amount of outflow to the rear of the muddy water is small. As a result, the muddy water is less likely to flow toward the outside of the groove, the groove is more likely to be filled, and the field scene is leveled.

  Thus, according to the farm work machine 1 shown in FIGS. 10 and 11, it is possible to perform appropriate leveling work and level the farm scene evenly.

  For example, in the leveling body 7 of the first embodiment or the like, the size of the cutout portion 41 located behind the rear wheel 55 of the tractor may be made smaller than the size of the other cutout portions 41. Good.

  Further, for example, the configuration in which the size of the notch 41 of the leveling body 7 decreases or increases from the one end side in the left-right direction of the leveling body 7 toward the other end side in the left-right direction, or the large notch 41 and the small notch 41, for example. A configuration in which and are alternately arranged may be used.

  Further, the configuration is not limited to the configuration in which the cutout portions having different sizes have similar shapes, and may be a configuration in which the shapes of the cutout portions having different sizes are different from each other.

  In addition, the orientation of the cutouts does not necessarily have to be the same along the same front-rear direction. For example, the orientation of some of the cutouts may be inclined with respect to the front-rear direction.

  Further, the agricultural working machine 1 is not limited to a three-fold type that can be folded. For example, the agricultural work machine 1 may be configured not to include the extension work unit 3 but to include the rear end leveling unit 10 including only the second leveling plate 12.

  In addition, for example, a plurality of types of second leveling plates 12 that can be easily attached to and detached from the first leveling plate 11 are prepared in advance, and one second leveling that is appropriately selected according to the soil condition and the like at the time of work. The base plate 12 may be used by being attached to the first leveling plate 11.

  In addition, although several embodiment of this invention and its modification were demonstrated, it is also possible to combine each embodiment and each modification suitably in the range which does not deviate from the summary of this invention.

1 Agricultural machines 7 Leveling bodies
11 The first leveling board which is the first leveling part
12 second leveling plate as a second leveling section (one plate-like ground leveling portion)
41 Notch
55 Rear wheels that are traveling wheels

Claims (6)

A plowing body for plowing work,
With a leveling body that performs leveling work behind this tilled body,
The leveling body has one plate-shaped leveling part,
The one plate-shaped leveling portion has a plurality of cutout portions having unequal sizes. A plowing body for plowing work,
With a leveling body that performs leveling work behind this tilled body,
The leveling body has one plate-shaped leveling part,
The one plate-shaped leveling portion has a plurality of cutout portions located side by side in the left-right direction,
The size of the said notch part differs according to the position of the left-right direction. The agricultural machine characterized by the above-mentioned. A plowing body for plowing work,
With a leveling body that performs leveling work behind this tilled body,
The leveling body has a plurality of cutouts located side by side in the left-right direction,
The size of the said notch part is different so that it may decrease toward the left-right direction edge part side from the left-right direction center part side of the said leveling body. The agricultural machine characterized by the above-mentioned. A plowing body for plowing work,
With a leveling body that performs leveling work behind this tilled body,
The leveling body has a plurality of cutouts located side by side in the left-right direction,
The size of the said notch part is different so that it may increase gradually or in steps toward the left-right direction edge part side from the left-right direction center part side of the said leveling body. An agricultural machine connected to the rear of the traveling vehicle,
A plowing body for plowing work,
With a leveling body that performs leveling work behind this tilled body,
The leveling body has a plurality of cutouts located side by side in the left-right direction,
Of the plurality of notches, the size of the notch located behind the traveling wheel of the traveling vehicle is smaller than the size of the other notches. A plowing body for plowing work,
With a leveling body that performs leveling work behind this tilled body,
The leveling body is:
A first leveling part capable of rotating;
A second leveling part rotatably connected to the first leveling part,
The second leveling portion has a plurality of notches having unequal sizes.
Agricultural machine characterized by that.

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